Integration by parts 分部積分法
Linear Algebra in Statistic 統計中的線性代數
Jacobian 於隨機變數轉換時的存在意義
covariance matrix is n.n.d 共變異數矩陣為非負定矩陣
some fact about \(R^{2}\)
estimation in linear model
diagnostics in linear model
Efficient Frontier & mean variance spanning test